| ZTel Local service in selected areas of the USA. | |
| XO Communications Providing services to businesses worldwide over its networks. | |
| WVT Communications Provides local, long distance, Internet, and data services in NY, NJ, & PA. | |
| WilTel Communications United States based backbone network services and broadband media on next-generation fiber-optic network. | |
| Western Wireless Corporation Provides wireless communications services, including cellular and personal communications services, in the Western United States and distributes handsets. | |
| West Bengal Telecom Serves the Indian states of West Bengal (excluding the area served by Calcutta Telephones) and Sikkim. | |
| Vtesse Networks Provides optical networking and related data services in the UK. | |
| Vositech Wireless, Inc. Offers wireless communication products and Voice over IP systems. | |
| Voicestream Wireless phone company covering most of the U.S. using GSM. Recently acquired Aerial. Features Mobile Originated SMS (MO-SMS). | |
| Voice.Sky Communications Provides various VoIP services for carriers and resellers. | |
| Vodafone Group Worldwide provider of mobile telecommunications. Includes information on services, pricing, roaming, and coverage. | |
| Virgin Mobile USA Mobile voice and data service to the USA. | |
| Virgin Mobile - UK GSM carrier offering SMS. Virgin also provides voice comparison shopping for electrical, music, wines and much more via their mobile phone service. New - read POP3 mail accounts from your mobile. | |
| Vimpel-Communications Mobile phone service provider in Russia. Includes SEC filings, informational statements, and news releases. Content in Russian and English. (NYSE: VIP) | |
| Videotron Telecom Internet, data, and telephony services provider in Canada. [English/French] | |
| Verizon Corporation Local Exchange Carrier (LEC). Offers long distance, data, and Internet services as well. | |
| VarTec Telecom, Inc. Provides local and long distance telephone service in the US. | |
| Valor Telecom Local & long distance in Oklahoma, Texas, New Mexico, and Arkansas. | |
| US Signal Provides services to business & wholesale customers in Michigan, Indiana, Illinois, Wisconsin and Ohio. | |
| US LEC Voice, Data, Internet service for the US market. Service level agreements offered. | |
